Instant oatmeal is not as healthy as regular oatmeal because it contains added sugar, salt, and artificial flavors. It also has a higher glycemic index, which can lead to a quick spike in blood sugar levels followed by a crash that can leave you feeling hungry sooner. Regular oatmeal, on the other hand, is a whole grain that is minimally processed and has no added sugar or salt. It is a great source of fiber, protein, and other nutrients that can help keep you feeling full and satisfied. So, while instant oatmeal may be more convenient, it is not as healthy as regular oatmeal.